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Author Topic: 2 megawatt LW station Radio France Inter to close  (Read 15190 times)

KD0REQ

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RE: 2 megawatt LW station Radio France Inter to close
« Reply #15 on: February 04, 2017, 07:05:54 AM »

broadcast transmitters were going solid-state in the 70s, at least on AM.  a station I knew in northern North Dakota lost the filter choke in an old Continental using 4-400s, so they had a nasty hum for a year, unobtanium.  I dropped in one day around 1978 when the noise cleared, and they had a new Gates up.  banks of TO-3 transistor amps off the exciter, blow some, plug more in. believe it was rated 5KW, but they only had a kilowatt of cards in due to their license.  all commercial transmitters are custom-order and built when ordered.
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